1. Finely chop the onion, slice the carrots thinly, and thinly slice the leeks. Cut the chicken breasts into large cubes.
2. Sauté the onion with olive oil during the preheating time of the browning mode.
3. Add the chicken breasts, carrots, mushrooms, and leeks. Sauté everything for about 2 minutes, stirring well.
4. Add water, crumbled bouillon cube, sifted cornstarch, salt, and pepper. Add the bouquet garni. Mix well.
5. Close and start pressure cooking for 10 minutes.
When the cooking is finished, add the cream and mix well.
Serve with pasta or rice.